Apply Wa_16018031267 / Wa_16018063123. This necessitates submitting a
fastcolor blit as WABB and setting the copy engine arbitration to
round-robin mode.
v2:
- Rename old platform check in second patch to match
declaration in first patch.
- Refactor second patch name to match first patch.
v3:
- Move NEEDS_FASTCOLOR_BLT_WABB to intel_gt.h.
- Refactor NEEDS_FASTCOLOR_BLT_WABB to make it more
streamlined to use.
- Stop dividing PAGE_SIZE by sizeof(u32) when computing
ctx_bb_ggtt_addr for lrc_setup_bb_per_ctx.
- Reduce comment complexity.
- Fix several checkpatch warnings.
v4:
- Actually stop dividing PAGE_SIZE by sizeof(u32) when
computing ctx_bb_ggtt_addr for lrc_setup_bb_per_ctx.
v5:
- Stop dividing PAGE_SIZE by sizeof(u32) in
check_ring_start during lrc live selftest.
v6:
- Append MI_BATCH_BUFFER_END to end of all PER_CTX_BB
command streams.
- No longer skip on empty, as command stream will never
be empty (always contains at least MI_BATCH_BUFFER_END).
- No longer append MI_NOOP until cachline aligned (was a
fragment from INDIRECT_CTX setup).
v7:
- Use 0x6b instead of 0 for color to maintain functionality.
v8:
- Revert v7.
- Add some reserved kernel space per vm to run the
workaround on.
v9:
- Hide reserved kernel space per vm from userspace.
v10:
- Revert v7 properly.
- Test on updated IGT.
v11:
- Remove Test-with tag.
- Reserve two pages per vm for workaround.
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
CC: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
CC: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
CC: Tomasz Mistat <tomasz.mistat@xxxxxxxxx>
CC: Gregory F Germano <gregory.f.germano@xxxxxxxxx>
CC: Matt Roper <matthew.d.roper@xxxxxxxxx>
CC: James Ausmus <james.ausmus@xxxxxxxxx>
CC: Chris Wilson <chris.p.wilson@xxxxxxxxxxxxxxx>
CC: Andi Shyti <andi.shyti@xxxxxxxxx>
Jonathan Cavitt (3):
drm/i915: Reserve some kernel space per vm
drm/i915: Add WABB blit for Wa_16018031267 / Wa_16018063123
drm/i915: Set copy engine arbitration for Wa_16018031267 /
Wa_16018063123
drivers/gpu/drm/i915/gt/gen8_ppgtt.c | 7 ++
drivers/gpu/drm/i915/gt/intel_engine_regs.h | 6 ++
drivers/gpu/drm/i915/gt/intel_gt.h | 4 +
drivers/gpu/drm/i915/gt/intel_gt_types.h | 2 +
drivers/gpu/drm/i915/gt/intel_gtt.h | 1 +
drivers/gpu/drm/i915/gt/intel_lrc.c | 100 +++++++++++++++++++-
drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 +
drivers/gpu/drm/i915/gt/selftest_lrc.c | 65 +++++++++----
8 files changed, 169 insertions(+), 21 deletions(-)
--
2.25.1
